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bckgrndrdtn

HN member
Joined
Sat, Jun 27, 2026, 12:59 PM UTC
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Public activity
7 items

About bckgrndrdtn

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Recent public activity

  1. comment
    Comment #48699061

    > These proof checkers all have bugs, every single one Please show me a proof of `False` in Lean.

  2. comment
    Comment #48698179

    It's a mixed bag. Some people don't use AI, for the usual reasons that people don't use AI. Others have used AI to write Lean programs. For example the 200K loc example mentioned i…

  3. comment
    Comment #48698056

    You are conflating: (i) accepting that a piece of code is a valid Lean proof (ii) merging a valid Lean proof into Mathlib. Valid Lean proofs need maintenance. Mathlib is a living b…

  4. comment
    Comment #48698022

    You would think that the people maintaining Mathlib are a subset of {understands type theory and how theorem provers work}... Yet they don't merge this stuff, for many different re…

  5. comment
    Comment #48697932

    All well and good, but we should also admit that under this criterion 95% of published math papers don't contain new ideas but are just filling in stuff that previous authors misse…

  6. comment
    Comment #48697908

    The future is now. See the article under discussion for some examples.

  7. comment
    Comment #48697903

    There's a lot to be said about that: https://lean-lang.org/doc/reference/latest/ValidatingProofs/ But let's assume Lean is perfect: - you have to trust your file system - you have …